Skip to main content
skill Claude Code

codebase-onboarding · alirezarezvani — Claude Code skill: setup and features

Analyzes a repository and generates onboarding documentation for engineers, tech leads, and contractors. Helpful for new hires and project handoffs.

Install into Claude Code · Plugin marketplace All methods and platforms ↓
/plugin marketplace add alirezarezvani/claude-skills
/plugin install engineering-advanced-skills@claude-code-skills
Open on GitHub

What codebase-onboarding does

The skill runs scripts/codebase_analyzer.py to inspect a repository. It identifies languages and maps top-level project structure. You can export facts directly to JSON.

Outputs follow references/onboarding-template.md and adjust depth by role. Junior engineers get setup steps and guardrails. Senior engineers receive architectural details. Contractor guides highlight scoped ownership and integration boundaries.

Use this skill when preparing handoffs or updating stale documentation after major refactoring.

What it helps with

  • generate tailored onboarding docs for different engineering levels
  • audit repository structure, languages, and config files
  • prepare scoped handoff packets for external contractors
  • rebuild stale project architecture docs after refactoring

Example prompts for the agent

  • Run scripts/codebase_analyzer.py on this repo and draft setup instructions for a junior engineer.
  • Analyze the repository structure and create an architecture overview using references/onboarding-template.md.
  • Export codebase facts with --json and prepare handoff docs for a contractor.

How to install codebase-onboarding

1Plugin marketplace

/plugin marketplace add alirezarezvani/claude-skills
/plugin install engineering-advanced-skills@claude-code-skills

This installs the whole engineering-advanced-skills plugin with all its skills

2Skills CLI (Vercel)

npx skills add alirezarezvani/claude-skills --skill codebase-onboarding -a claude-code

3Manually: put the files in place

~/.claude/skills/codebase-onboarding/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/codebase-onboarding/

From the same set349

The whole set →
engineering-skills Alireza Rezvani An engineering skill index for Claude Code that helps you select one specialist SKILL.md for the task at hand. It covers architecture, testing, DevOps, and data work. Claude Code 2,387installs finance-skills Alireza Rezvani Routes ambiguous finance prompts to the right bundled skill: financial-analyst, saas-metrics-coach, or month-end-close. Claude Code 2,312installs marketing-skills Alireza Rezvani A directory and router for marketing skills in Claude Code. It picks the right specialist skill for SEO, content, CRO, channels, and related tasks. Claude Code 2,264installs business-growth-skills Alireza Rezvani Routes growth and revenue prompts to the right specialized skill across customer success, sales engineering, RevOps, and proposals in Claude Code. Claude Code 2,189installs engineering-advanced-skills Alireza Rezvani An index of 37 engineering skills for architecture, automation, reliability, and platform work. Use it when a project needs task-specific engineering workflows. Claude Code 2,019installs product-skills Alireza Rezvani Product work orchestrator for Claude Code. Routes queries across 16 domain lanes and validates discovery trees with deterministic scripts. Claude Code 1,994installs pm-skills Alireza Rezvani Routes project-delivery requests across 8 PM sub-skills for Jira, Confluence, sprints, reporting, and team communication. Useful for controlled delivery work. Claude Code 1,975installs senior-backend Alireza Rezvani Scaffolds backend APIs, detects database bottlenecks, and runs load tests. Useful when designing Express routes, optimizing PostgreSQL, or preparing for production. Claude Code 1,674installs

Other versions of codebase-onboarding

Similar

Questions about codebase-onboarding

How to install codebase-onboarding in Claude Code?

Run /plugin marketplace add alirezarezvani/claude-skills or install it with npx skills add alirezarezvani/claude-skills --skill codebase-onboarding -a claude-code.

What does codebase-onboarding do?

It examines repository signals with a Python analyzer script and structures onboarding documentation tailored to engineers, leads, or contractors.

How does it adapt output for different audiences?

Junior outputs focus on setup and guardrails, senior guides target architecture, and contractor documentation defines scoped integration boundaries.

Source text

SKILL.md · MIT
---
name: "codebase-onboarding"
description: "Analyze a codebase and generate onboarding documentation for engineers, tech leads, and contractors. Fast fact-gathering and repeatable onboarding outputs. Use when onboarding a new engineer, writing architecture-overview docs for a new project, or producing tech-lead briefings for unfamiliar repos."
---

# Codebase Onboarding

**Tier:** POWERFUL  
**Category:** Engineering  
**Domain:** Documentation / Developer Experience

---

## Overview

Analyze a codebase and generate onboarding documentation for engineers, tech leads, and contractors. This skill is optimized for fast fact-gathering and repeatable onboarding outputs.

## Core Capabilities

- Architecture and stack discovery from repository signals
- Key file and config inventory for new contributors
- Local setup and common-task guidance generation
- Audience-aware documentation framing
- Debugging and contribution checklist scaffolding

---

## When to Use

- Onboarding a new team member or contractor
- Rebuilding stale project docs after large refactors
- Preparing internal handoff documentation
- Creating a standardized onboarding packet for services

---

## Quick Start

```bash
# 1) Gather codebase facts
python3 scripts/codebase_analyzer.py /path/to/repo

# 2) Export machine-readable output
python3 scripts/codebase_analyzer.py /path/to/repo --json

# 3) Use the template to draft onboarding docs
# See references/onboarding-template.md
```

---

## Recommended Workflow

1. Run `scripts/codebase_analyzer.py` against the target repository.
2. Capture key signals: file counts, detected languages, config files, top-level structure.
3. Fill the onboarding template in `references/onboarding-template.md`.
4. Tailor output depth by audience:
   - Junior: setup + guardrails
   - Senior: architecture + operational concerns
   - Contractor: scoped ownership + integration boundaries

---

## Onboarding Document Template

Detailed template and section examples live in:
- `references/onboarding-template.md`
- `references/output-format-templates.md`

---

## Common Pitfalls

- Writing docs without validating setup commands on a clean environment
- Mixing architecture deep-dives into contractor-oriented docs
- Omitting troubleshooting and verification steps
- Letting onboarding docs drift from current repo state

## Best Practices

1. Keep setup instructions executable and time-bounded.
2. Document the "why" for key architectural decisions.
3. Update docs in the same PR as behavior changes.
4. Treat onboarding docs as living operational assets, not one-time deliverables.

© Alireza Rezvani · MIT · alirezarezvani/claude-skills

See also

Project sponsors

Companies that keep this analytics open
Gold sponsor

Impressions, clicks and code copies — open statistics. We keep the numbers public for the same reason NeBlask itself is public. Become a sponsor